This wedding ring guard has 14 round, prong set stones. Each band measures 2.1 millimeters wide. This ring guard has 0.5 carats total weight. It is made to fit a round solitaire from 0.5 carats to 2, or a princess cut solitaire from 0.3 up to 1.5, or a marquise solitaire from 0.5 up to 1 carats.